layers:Immutable samplers are updated at creation
layers:Immutable samplers are updated at creation

Fixes #1741

Descriptors with immutable samplers are updated at the time they're
created. Set update bool for descriptor sets with immutable samplers
at the time they're created. This will prevent false positives.

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools